Opinionated JPA with Querydsl

Richard "Virgo" Richter

Table of Contents

Preface

I JPA Good Times, Bad Times

1. Good Parts
2. The Missing Parts
3. Questionable parts
4. Caching considerations
5. Love and hate for ORM

II Opinionated JPA

6. Tuning ORM down
7. No further step without Querydsl
8. Troubles with to-one relationships
9. Removing to-one altogether
10. Modularity, if you must

III Common problems

11. Avoid N+1 select
12. Mapping Java enum
13. Advanced Querydsl

IV Final thoughts

Appendices

H2 Database
- Starting it
- Using it as a devel/test DB
Project example
- Querydsl and Maven
- Querydsl and Gradle
Bugs discovered while writing this book
List of acronyms

Resources

Notes

Opinionated JPA with Querydsl/Overview

Opinionated JPA with Querydsl

Course overview

Opinionated tour around Java based ORM, advocating more SQL-like approach, eventually breaking some JPA rules - and introducing Querydsl on the way.

8 parts

·

17 chapters

Download

Part 1

Preface0 chapters

Part 2

I JPA Good Times, Bad Times5 chapters

1. Good Parts
2. The Missing Parts
3. Questionable parts
4. Caching considerations
5. Love and hate for ORM

Part 3

II Opinionated JPA5 chapters

6. Tuning ORM down
7. No further step without Querydsl
8. Troubles with to-one relationships
9. Removing to-one altogether
10. Modularity, if you must

Part 4

III Common problems3 chapters

11. Avoid N+1 select
12. Mapping Java enum
13. Advanced Querydsl

Part 5

IV Final thoughts0 chapters

Part 6

Appendices4 chapters

H2 Database
Project example
Bugs discovered while writing this book
List of acronyms

Part 7

Resources0 chapters

Part 8

Notes0 chapters